JTAC 9-line
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Do I have to enter the 9-line information on the ECHO Point DEST page? (How to update the coordinates?
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@Leandro please read chapter 271.-27.3 in the training manual.
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I read it, I just hadn’t been clear on that point. Also, I don’t speak much english, so it’s a bit more difficult for me.
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@Leandro It is described on p. 239 of the BMS-Training.pdf.
But basically, to input the coordinates you
Open DEST on the ICP, using LIST-1
Set a number, say 56 and press ENTR
Go down to where it says “LAT N”, then press 2
Input the N coordinates, press ENTR
You are now at “LNG E”
Press 6, then input the E coordinates, press ENTRYou may enter an altitude as well.
You can now set 56 as a Steerpoint
-JayB
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I have a last question,
According to the training manual, I have hold at B25 block 20-21, and the 9line is1- B6
2- 247° RightWhat do these first two lines refer to?
this
or this
Sorry but I can’t quite understand it
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@Leandro
B6 is 6 miles east of Echo.
Line2 is the bearing from the IP (in this case B6) to the target.
The directions (Left or Right) that follow represent the direction of offset you should take.It is important to note that Line2 does not indicate the path you will be flying.
It is only the heading from the IP to the target. -
@Cypher1778 thanks for you help
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I think it’s an offset to avoid overflying friendlies including the JTAC located in the mountains just ESE of target - after you reach bravo 6 heading 270
That may be why JTAC calls 6.25 miles to target from IP - to account for a little arc to the north then back southish? -
Line 2 is mostly the magnetic heading from the IP to the target. So in your case 246°.
“Right” is the offset. That means the side you can use to maneuver to bring yourself to the final attack heading. So @Cypher1778 is correct.In the example in the training manual it is already a little bit more tricky because line 2 in this case is an offset heading from the IP to reach the final attack heading cone. So maybe a little bit to complicated in this case for a nugget, but its RL best practice to do so as well. Maybe I will change that in the TM.
The goal always is to maneuver from the given IP that you arrive your final attack heading. For now the final attack heading is the same like line 2 when using the BMS JTAC.
If you have any more question fire them up.
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@Micro_440th Let’s see if I understand correctly, if I enter heading 270° as the training manual would say, do I have to turn right until I enter heading 247° for the final attack?
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@Micro_440th I interpreted the Line 2 value as the radial from the IP, on which the target would be located. Is that not the way to think about it ?
Btw, congratulations on getting this into the game, it is an impressive feature
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@Leandro
Your IP in your case is B6. So you dont have lot time to maneuver if you cross B6 at 270°. Better cross B6 already at 247° heading so you have correct final attack heading.If you have B25 as IP, you can use the 270° heading because you have plenty of time to maneuver and bring yourself in correct position for 247 heading.
As you can see: CAS procedures are pretty confusing sometimes. The best approach to adopt is to build a picture in your head or use paper/pencil.
The BMS JTAC is pretty good for learning the basics.
But their are 100s of solutions because there are 100s of possible situations when doing this with humans (which is by the way the most challenging thing for me personally to do in BMS) -
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If your IP is anywhere on the “bravo direction” and echo point is overhead line 6, and you fly in west directly over the IP, are you saying a final attack heading can be anything other than 270 degrees?
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Yeah it is a bit confusing to me. The disconnect seems to be that a point on the Bravo 090 radial (B6 or B25) is called the IP (Line 1) when in fact the heading for the run-in on target is not 270.
The operational IP would be somewhere on radials between A and B - and closer to B than A - from which one can assume a heading of 247. But maybe the idea is that the “IP” stated is the best approximate cardinal direction best suited to line up properly on 247. If so, flying through B6 gives very little room to manouver onto 247. B12 or B15 would make the run-in more doable.
I tried to sketch how I view it, it might be off but at least it is easier to talk about visuals that way:
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@jayb said in JTAC 9-line:
Yeah it is a bit confusing to me. The disconnect seems to be that a point on the Bravo 090 radial (B6 or B25) is called the IP (Line 1) when in fact the heading for the run-in on target is not 270.
The operational IP would be somewhere on radials between A and B - and closer to B than A - from which one can assume a heading of 247. But maybe the idea is that the “IP” stated is the best approximate cardinal direction best suited to line up properly on 247. If so, flying through B6 gives very little room to manouver onto 247. B12 or B15 would make the run-in more doable.
I tried to sketch how I view it, it might be off but at least it is easier to talk about visuals that way:
To dissipate any doubt, Echo is not target location. It’s probably not too far from it, but it can be as far as B6 is from Echo in BMS standards (6 nm).
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@LorikEolmin Right, I was referring to the Line 6 coordinates as the Echo point. They may be different.
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I’m understanding now, the only thing that is not clear to me is the Offset. I don’t know at what point it should be done.
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@Leandro over the IP - check out that diagram I snipped from the training manual in my prev post
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so is this?